Chuck



Nov. '23 1926,

w. M. CUTLIER CHUCK Filed March 23- 1923 2 sheeisrsheefi 1 Ira/220221302v WaZZaceM OuZZar;

Nov. .23- 192,6. 1,608,463

w. M. CUTLER CHUCK Fild March 25. 1923 2 Sheets-Shebt 2 1721721271; 70 WWaZZaceMOzJZe;

Patented Nov. 23, 192.6.

" UNITED STATES l,6ll8,l 63

PATENT OFFICE.

WALLACE M. CUTLER, 0F WINDSOR LOCKfil TON (it SON COMPANY, OF WINDflUEtLCLMQ,

CONNECTICUT.

CO-YM'NECTIC JT, ABSIG'NOR TO THE E. I-ICR- CDI INECTICUT, A CORPORATIONOF CHUCK.

Application filed March 23, 1923. Serial No. 627L133.

My invention relates to chucks and has among its objects the provisionoi improved means for operating the jaws when the chuck is rotating andfor permitting a hammer blow to be impart d to the jaws.

The invention will be best understood from the following descriptionwhen read vention;

Fig. 2 is a section on the line 2-2 of Fig. 1;

Fig. 3 is a rear view of the chuck accordmg t Figs. 1 and 2; and

Fig. l is a section on the line le-d of Fi 2.

Referring to the drawings and to the preferred embodiment of myinvention 1 have shown a chuck which comprises a body 1 the face of saidbody having the radially disposed slots 3 which are formed to provideguideways for the jaws 5, said jaws at their rearward sides having teeth7 engaging the teeth 9 on the scroll wheel 11. It will be understoodthat by this construction when the scroll wheel is rotated the jaws willbe moved radially relatively to the body to grip or release the workdepending upon the direction of rotation of the scroll wheel.

As shown the rearward side of the body is provided with an annularrecess 13 which intersects the slots The scroll wheel is mounted forrotation relatively to the body in this recess and is .ined therein bymeans of a ring 15, the rearward side oi the recess 13 being on 17 toreceive the outer circumferential portion 01 the ring and providing ashoulder 19 which the ring abuts. For holding the ring against theshoulder 19. 1' provide the bolts 21 which have heads 23 fitting theannular recess 25' on the rearward surface of the ring. As clearly shownin Fig. 4 the bolts 21 pass tl'irough notches 27 on the outer peripheralsurface of the ring so to permit a limited relative movement between thering and the body.

Referring particularly to Figs. 2 and 1 the rearward side of the scrollring is provided with an annular flange 29 having the internal gearteeth 31, while the ring 15 is provided with the internal gear teeth 33.The gear teeth on the scroll ring have a slightly greater pitch diameterthan the gear teeth on the ring 15, and meshing with both sets of gearteeth are the ditlerentialpinions which are rotatively mounted on pins3' carried by a hand wheel 39.

It will be noted by the above construction that it the hand wheel isrotated relatively to the body of the chucl: the differential pinions 35will cause the scroll wheel to rotate relatively to the body, thedirection of rotation oi the scroll wheel depending upon the directionof rotation of the hand wheel. The lost motion between the ring 15 andthe body permitted by the notches 27 allows by suddenly taking up thelost motion a hammer blow to be given to the jaws so as to cause themfirmly to grip the worlr or readily to release the work.

The rearward side of the body adjacent the rearward side of the recess13 is reduced in diameter at ll affording the shoulder .1.3. Un thisportion oi reduced diameter and abutting the shoulder is aring 4.5provided. with the flange l7. The ring is secured to the body by meansor one or more screws l8 and when so assembled with the body holds thehand wheel in position. The ring provides a ball race for the balls 49forming an anti-friction bearing for the hand wheel upon the ring.

The portion of the hand wheel adjacent the ring 15 is recessedto form anannular shoulder fitting the rear end of the inner side of the ring, andcarried by the hand wheel is a packing 51 which acts to prevent leakageof lubricant contained in the chamber atforded by the flange 29 ot thescroll wheel and by the ring 15.

The body is secured to a part 58 by means of the bolts 55, this partabuttingthe rearward side of the body and fitting an annular recess 57formed by an enlargement at the rearward end of the bore of the ring 45.

For causing rotation of the ring 39 when the chuck is rotated andthereby moving the jaws to release the work or to grip the work as thecase may be I provide the rearward end of the hand wheel with aninternal flange 59 which in cross section is wedge body,

shaped tapering towards the axis of the chuck. I utilize the flange 59as a brake surface, for this purpose providing the shoe 61 which has anarcuate recess 63 for engaging the sides of the flange. The shoe 61 ispivoted at'65 at the end of a hand lever 67, the latter being :tulerumedto a pivot pin 69 carried by a lixed part of the lathe.

he upper side of the brake shoe is concave as shown at 71 and normallyis held by the weight of: the lever against the exterior annular surface73 of the part 53. This prevents tilting of the shoe on its pivot andholds the outer side of the shoe in parallelism with the flange 59 whichinsures that the shoe will not accidentally engage the flange 59 andalways will be in position efl'ectively to engage the flange when theoperator so desires. Further it will be noted that the surface 73 actsas a limit stop for the shoe and that by forcibly causing the shoe toengage the surface 73 a brake is provided for quickly stopping rotationof the chuck when it is disconnected from the source of power drivingit.

1 Although I have described for purposes of illustration one specificembodiment of my invention it is to be understood that I am not limitedthereby to its particular mechanical details, but that within the scopeof my invention wide deviations may be made therefrom without departingfrom the spirit or my invention.

Claims- 1. A chuck comprising, in combination, a body, jaws carried bysaid body, a jaw operating part rotatable relatively to said body, meansincluding a ring for actuating said part, said ring being rotatablerelative to said body, said ring having a rearwardly extending annularflange the periphery of said flange being for application of the hand oithe operator and an annular flange interiorly oi said rearwardlyextending flange, said annular flange being wedge shaped incross-section, a brake shoe surrounded by said rearwardly extendingflange and adapted to engage opposite surfaces of said annular flange,and means for operating said brake shoe.

2. A chuck comprising, in combination, a body, jaws carried by saidbody, a jaw operating part rotatable relatively to said body, meansincluding a ring for actuating said part, said ring being rota-tablerelatively to said body, said ring having a rearwardly extending annularflange the periphery of said flange being for application of the hand ofthe operator and an annular flange interiorly of said rearwardlyextending flange, and braking means for engaging opposite sides of saidannular flange.

8. A chuck comprising, in combination, a

jaws carried by said body, a jaw operating part rotatable relatively tosaid body, means including a hand wheel for ac tuating said part, saidhand wheel being rotatable relatively to said body and having arearwardly extending flange for application of the hand of the operator,an internal radial flange on said rearwardly extending flange of saidhand wheel, and braking means for engaging said radial flange.

a. A chuck comprising, in combination, a body, crating part rotatablerelatively to said body, means including a ring for actuating said part,said ring being rotatable relatively to said body, said ring having arearwardly extending annular said flange being for application of thehand of the operator and an annular flange interiorly or" saidrearwardly extending flange, a brake shoe surrounded by said rearwardlyextending flange and for engaging opposite sides of said annular flange,and a lever for operating said brake shoe.

5. A chuck comprising, in combination, a body, jaws carried by saidbody, a jaw operating part rotatable relatively body, means including aring for actuating said part, said ring being rotatable relatively tosaid body, said ring: having a rearwardly extending annular flange theperiphery of said flange being for application of the hand of theoperator and an an nular flange interiorly of said rearwardly extendingflange, a brake shoe surrounded by said rearwardly extending flange andhaving portions straddling said annular flange, and means for causingsaid portions to engage said annular flange.

6. A chuck comprising, in combination, a body, jaws radially movablerelatively to said body, a scroll wheel for operating said jaws mountedin an annular recess in said body, a flange with internal gear teeth onsaid scroll wheel, a ring with internal gear teeth connected to saidbody and retaining said scroll wheel in said recess, a hand wheelcarrying a differential pinion meshing with said gear teeth on saidscroll wheel and said gear teeth on said ring, an internal flange onsaid hand wheel and a brake for engaging said flange.

7. A chuck comprising, in combination, a body, jaws radially movablerelatively to said body, a scroll wheel for operating said jaws mountedin an. annular recess in said body, a flange with internal gear teeth onsaid scroll. wheel, a ring with internal gear teeth connected to saidbody and retaining said scroll wheel in said recess, said ring jawscarried by said body, a jaw op flange the periphery of to said i lidhaving a lost motion connection with said body, a hand wheel carrying adiflerential pinion meshing with said gear teeth on said scroll wheeland said gear teeth onsaid ring, an internal flange on said hand wheeland a brake for engaging said flange.

8. A chuck comprising, in combination, a

t lt? til) body, jaws radially movable relatively to said body, a scrollwheel for operating said jaws mounted in anannular recess in said body,a flange with internal gear teeth on said scroll wheel, a ring withinternal gear teeth connected to said body and retaining said scrollwheel in said recess, iid body at its rearward side having an exteriorportion of reduced diameter affording a shoulder, a race way fittingsaid portion of reduced diameter and abutting said shoulder, a part towhich said body is attached abutting said race way and said body, a handwheel mounted on said race way, and differential pinion means carried bysaid hand wheel and meshing with said gear teeth on said scroll wheeland with said gear teeth on said ring.

9. A chuck comprising, in combination, a body, jaws radially movablerelatively to said body, a scroll wheel for operating said jaws mountedin an annular recess in said body, a flange with internal gear teeth onsaid scroll wheel, a ring with internal gear teeth connected to'saidbody and retaining said scroll wheel in said recess, said body at itsrearward side having an exterior portion of reduced diameter affording ashoulder, a race way fitting said portions of reduced diameter andabutting said shoulder, a part to which said body is attached abuttingsaid race way and said body, a hand wheel mounted on said race way, anexterior flange on said race way for retaining said hand wheel on saidrace way, and differential pinion means carried by said hand wheel andmeshing with said gear teeth on said scroll wheel and with said gearteeth on said ring.

10. A chuck comprising, in combination, a body, jaws radially movablerelatively to said body. a scroll wheel for operating said jaws mountedin an annular recess in said body, a flange with internal gear teeth onsaid scroll wheel, a ring with internal gear teeth connected to saidbody and retaining said scroll in said recess said body at its rearwardside having an exterior portion of reduced diameter affording ashoulder, a race way fitting said portion of reduced diameter andabutting said shoulder, a part to which said body is attached abuttingsaid race way and said body, a hand wheel mounted on said race way, arearwardly extending flange on said hand wheel, a brake surrminded byand for engaging said'flange, and differential pinion means carried bysaid hand wheel and meshing with said gear teeth on saidscroll wheel andwith said gear teeth on said ring.

11. A chuck having in combination, a body,jaws. a scroll wheel formoving said jaws, a part to which said body is attached, a race waysurrounding said body and part, a hand wheel having an internal flange59, said hand wheel. being carried by said race way, differentialgearing connecting said scroll "wheel and hand wheel, and a brake shoe61 between and adapted to engage said part and said flange.

12. A chuck comprising, in combination, a body, jaws, a jaw operatingpart, gearing for moving said jaw operating part relatively to saidbody, means for actuating said gearing comprising an annular memberrotatable relatively to said body but normally rotating with said body,a brake shoe for engaging said annular member, means affording a stoplimiting the motion of said shoe when moved away from said annularmember, and said shoe being pivoted to an operating lever for said shoearranged to normally hold said shoe against said means affording saidlimit' stop.

13. A chuck comprising, in combination, a body, jaws, a jaw operatingpart, gearing for moving said jaw operating part .rela tively to saidbody, means for actuating said gearing comprising a member with aninternal annular surface, said member normally rotating with said chuckbut being mounted on said chuck for rotation relatively to the body ofsaid chuck, a part rotating with said chuck and having an exteriorannular surface surrounded by said internal annular surface, a brakeshoe positioned between said annular surfaces, said brake shoe having onone side a convex surface for engaging said internal annular surface andon its other side a concave surface for engaging said exterior annularsurface, means normally holding said brake shoe against said exterioranmilarsi'urface, and said means permitting said brake shoe to beforcibly pressed selectively against either of sad annular surfaces.

1%. A chuck comprising, in combination, a body, jaws, a jaw operatingpart, gearing for moving said jaw operating part, means for actuatingsaid gearing comprising a member mounted for rotation relatively to saidbody but normally rotating therewith, and brake means forselectivelycausing rotation of said member relatively to said body orcausing rotation of said chuck to be retarded.

15. A chuck comprising, in combination, a body, jaws, a jaw operatingpart, gearing for moving said jaw operating part relatively to saidbody, means for actuating said gearing comprising a member with aninternal annular surface, said member normally rotating with said chuckbut being mounted on said chuck for rotation relatively to the body ofsaid chuck, a part rotating with said chuck and having an exteriorannular surface surrounded by said internal annular surface, a brakeshoe positioned between said annular surfaces, said brake shoe having onone side a convex surface for engaging said internal annular surface andon its other side a concave surface for engaging gearing comprising anannular said exterior annular surface, said brake shoe being pivoted toan operating lever, and

said lever having its fulcrum so disposed that said lever normally holdssaid shoe against said exterior annular surface.

16. A chuck comprising, in combination, a body, aws, aw operating part,gearing for moving said jaw operating part relatively to said body,.means for actuating said gearing comprising an annular member rotatablerelatively to said body but normally rotating with said body, a brakeshoe for engaging said annular member, a movable part carrying said shoefor applying said shoe to said annular member, said shoe being movablerelatively to said part, a membervhav ing an annular surface rotatingwith said chuck, and said brake shoe being so disposed relatively tosaid annular surface that it is normally held thereby in parallelismwith said annular member.

17. A chuck comprising, in combination, a body, jaws, a jaw operatingpart, gearing ror moving said aw operating part relatively to said body,means for actuating said member rotatable relatively to said body butnormally rotating with said body, a brake shoe for engaging-said annularmember, movable operating means for said brake shoe to which said brakeshoe is pivotally connected for adjusting itself to said annular member,and a part rotating with said chuck for preventing tilting ofsaidshoe onits pivotal connection' 18. A chuck comprising, in combination, a body,jaws, a jaw operatingpart, gearing ior moving said operating partrelatively to said body, means for actuating said gearing comprising anannular member rotatable relatively to said body but normally rotatingwith said body, a brake shoe for engaging said annular member, movableopcrating means for said brake shoe to which annular said brake shoe isrelatively movable for ad ustingitselt to said annular member, and meansrotating with said chuck for limiting such relative movement.

19. A chuck comprising, in combination, a

"body, jaws, a jaw operating-part, a hand wheel rotatable relatively tosaid body for.

moving said jaw operating part, an annular fian e on said hand wheel abrake shoe for engaging said annular flange, movable operating means forsaid shoe to which said shoe is movably tastened't'or adjusting it selfto said flange, and means rotating with said chuck for holding said shoewhen in its disen 'ed position in parallelism with said flange. i V

- 120. Achuck comprising, in combination, a body, jaws, a aw. operatingpart, a hand 7 wheel rotatable relatively to saidv body for moving saidoperating part, an annular 'f-fla 'e; on said hand wheel, a. brake shoefor engaging said annular flange, operating means "for said'shoe, meanscomprising an annular surface rotating with said chuck. said annularsurface holding said shoe when in its disengaged position in parallelismwith said flange, and said operating means for said shoe being eliective to forcibly press said shoe against said annular surface forbraking said chuck at the will of the operator.

21. A chuck comprising, in combination, a body, jaws, a jaw operatingpart, diii'erential gearing for moving said jaw operating said body andjaw operating part, and means permitting a limited rotative movement ofone of said annular series of gear'teeth relatively to the part carryingit.

23. A chuck comprising, in combination, a body, jaws, a jaw operatingpart, difierential means for operating said jaw operating part, saidmeans including a difierential gear mounted for bodily rotationrelatively to said body and meshing with two annular series of gearteeth respectively carried by said body and jaw operating part, andmeans permitting a limited rotative movement relatively to said body ofsaid annular series of gear teeth carried by said body.

2th A chuck comprising, in combination,

body, jaws, a jaw operating part, differ ential means for operatingsaid-jaw operat-ing part, said means including a differentialgearmounted for bodily rotation relatively to said body, said gearmeshing with an annular series of gear teeth carried by said jawoperating part, a ring carried by said body and having a limitedrotative .movement relatively to said body, and said ring having anannular series of gear'teeth meshing with said differential gear.

H 25. A chuck comprising, in combination, a body, jaws. a aw operatingpart, differential means for operatingsaid aw operating part, said meansincluding a differential gear mounted for l.)0&ily rotation relativelyto said body, said gear meshing with an annular series of gear teethcarried by jaw operatingpart, a ring having an annular series or"gearteeth meshing with said gear, andbolts securing said ring to saidbody and permitting a limited rotative movement of said ring relativelyto said body.

26. A chuck comprising, in combination, a body, jaws, a jaw operatingpart, differential gearing for operating said jaw operating part, saiddifferential gearing comprising a. train of gears, and a mounting forone of said gears permitting lost motion in said train. 7

27. A chuck comprising, in combination, a body, jaws, a jaw operatingpart, differential gearing for operating said jaw operating part, saiddifferential gearing compris ing a train oi gears, and means permittinga limited lost motion other than back lash in said train of gears.

28. A chuck comprising, in combination, a body, jaws, a jaw operatingpart, a member mounted for rotation on said body and having a rearwardlyprojecting annular flange for manual operation of said member, annularseries of gear teeth carried by both said body and jaw operating part,said member having rotatably mounted thereon a pinion meshing with bothannular series of gear teeth and forming therewith two gear sets ofslightly different ratio, and a lost motion connection between one ofsaid annular series of gear teeth and the part carrying it.

29. A chuck comprising, in combination, a body having a rearwardlyopening recess, radial slots on the forward face of said bodyintersecting said recess, a scroll wheel on said recess, jaws in saidradial slots having rack teeth meshing with said scroll wheel, saidscroll wheel carrying a gear, a ring gear having a lost motionconnection with said body, a hand wheel at the rear of said ring gear,pinions rotatably mounted on said wheel meshing with both said gearcarried by said scroll wheel and said ring gear, and said pinions andgears forming two gear sets of slightly different ratio.

30. A chuck comprising, in combination, an annular body, jaws, a jawoperating part, a hand wheel mounted for rotation on said body at therear of said body and having anannular exterior, said body at itsperiphery abutting said hand wheel, a pair of gears respectively carriedby said body and jaw operating part, a pinion rotatably mounted on saidhand wheel, said pinion meshing with both gears and forming therewithtwo gear sets of slightly different ratio, and a lostmotion connectionbetween one of said gears and the part carrying it.

31. A. chuck having in combination, a body, a rearwardly opening annularrecess in said body, radial slots on the forward face of said bodyintersecting said recess, a scroll wheel in said recess, aws in saidslots having rack teeth meshing with said scroll wheel, an annularflange provided with internal gear teeth carried at the rearward side ofsaid wheel, said recess at its rearward side having an annularenlargement, an internal ring gear received in said recess, boltsholding said ring gear on said body andpermitting lost motion betweensaid body and ring gear, a hand wheel mounted for rotation on said bodyand closing the rearward side of said recess, studs on said hand wheelprojecting into said recess, a pinion on each stud, and each pinionmeshing with both the gear teeth carried by said scroll wheel and saidring gear and forming therewith two gear sets of slightly differentratio.

32. A chuck comprising, in combination, a body, jaws radially movablerelatively to said body, a scroll wheel for operating said jaws mountedin an annular recess in said body, a flange with internal gear teeth onsaid scroll wheel, a ring with internal gear teeth connected to saidbody for limited rotative movement relatively to said body and retainingsaid scroll wheel in said recess, a. hand wheel carrying a differentialpinion meshing with said gear teeth on said scroll wheel and said gearteeth on said ring, an internal flange on said hand wheel and a brakefor engaging said flange.

In testimony whereof, I have signed my name to this specification.

WALLACE M. CUTLER.

Certificate of Correction.

It is hereby certified that in Letters Patent No. 1,608,463, grantedNovember 23, 1926, upon the application of \Vallace M. Cutler, ofVindsor Locks, Connecticut, for an improvement in Chucks, errors appearin. the printed specification requiring correction as follows: Page 3,line 28, claim 9, for the word portions read portion, and line 45, claim10, after the word scroll insert the Word wheel; and that the saidLetters Patent should be read With these corrections therein that thesame may conform to the record of the case in the Patent Office.

Signed and sealed this 4th day of January, A. D. 1927.

[smn] M. J. MOORE,

Acting Uowwm'ssz'oner of Patents.

